Re: 3w-9xxx: scsi0: WARNING: (0x06:0x0037): Character ioctl (0x108)timed out, resetting card.

[adam radford]

Justin,

There were no changes in the driver other than to force a 60 second I/O
timeout.  You probably have a udev rule that was already giving you 60
second timeouts for all scsi devices, so this patch did absolutely nothing.

More likely is that there is an I/O pattern change between the kernels
that is causing a 3ware firmware issue (or drive firmware issue) on
your configuration.
I have forwarded your case to 3ware firmware support.

-Adam


On Tue, Aug 31, 2010 at 5:23 AM, Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx> wrote:
>
>
> On Tue, 31 Aug 2010, Justin Piszcz wrote:
>
>>
>>
>> On Tue, 31 Aug 2010, Justin Piszcz wrote:
>>
>>>
>>>
>>> On Sun, 29 Aug 2010, Justin Piszcz wrote:
>>>
>>>> On Fri, 27 Aug 2010, Justin Piszcz wrote:
>>
>> Per my earlier message, both cards were resetting, scsi0 and scsi1 under
>> kernel 2.6.35(.x), with 2.6.34, the lag problem is gone and my machine is
>> back to normal again.  It is unlikely that both cards would be at fault,
>> in addition I spent several hours trying different things, removing the
>> BBU
>> modules for example, but always staying on the 2.6.35 kernel.
>>
>> I am now able to run rss2email (which ALWAYS caused the machine to lockup
>> and freeze until one of the controllers reset) without any problems using
>> 2.6.34.
>>
>> 2.6.34.1 = good
>> 2.6.35.x = has 3ware bug
>>
>> There appears to be a bug in the commit for the 3w-9xxx updates.
>>
>> On 2.6.34 now and no problems so far, I am continuing to test.
>>
>> http://marc.info/?l=linux-kernel&m=127419418304483&w=2
>>
>> Adam Radford (2):
>>     3ware maintainers update
>>     3w-xxxx, 3w-9xxx: force 60 second timeout
>>
>>
>> Justin.
>
>
> Latest-- 2.6.34.x seems to fix the issue, no lag whatsoever, the system is
> very responsive when running rss2email, again no lag, have run 10-15 tests
> without a single incident.  I also re-enabled msi and put my optimization
> script back in init.d, everything continues to work perfectly.
>
> Will wait for Adam on what went wrong with the 2.6.35 3w-9xxx update.
>
> Justin.
>
>
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